ptc_examples: Explicitly set branch parameter in SRC_URI
ptc_examples: Explicitly set branch parameter in SRC_URI

Branch name needed as latest bitbake demands it.

Signed-off-by: Nicolas Ferre <45b517be0e5ec6dc3a39715767c1d18e090d39b4@microchip.com>
Reviewed-by: Codrin Ciubotariu <97034fe81dd68ee5e1fa3aa6216f6373b034daef@microchip.com>

linux4sam/meta-atmel,linux4sam/meta-atmel,linux4sam/meta-atmel,linux4sam/meta-atmel,linux4sam/meta-atmel